#1C155E#1C155E

#1C155E is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.4% C 0.123 H 278.1°. Best body text is #FFFFFF at 15.93:1 contrast (WCAG AA passes).

Color values

HEX	#1C155E
RGB	rgb(28, 21, 94)
HSL	hsl(246, 63%, 23%)
HSV	hsv(246, 78%, 37%)
CMYK	cmyk(70.2%, 77.7%, 0%, 63.1%)
CIE-LAB	lab(13.18, 28.05, -42.13)
CIE-LCH	lch(13.18, 50.61, 303.66°)
OKLab	oklab(26.36% 0.0173 -0.1216)
OKLCH	oklch(26.36% 0.123 278.1)
XYZ	xyz(2.7668, 1.5911, 10.7488)
Luminance	0.0159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C155E #575E15

analogous

#15335E #1C155E #40155E

triadic

#1C155E #5E1C15 #155E1C

tetradic

#1C155E #5E1533 #575E15 #155E40

square

#1C155E #5E1533 #575E15 #155E40

split-complementary

#1C155E #5E4015 #335E15

monochromatic

#070619 #0D0A2C #1C155E #2B2090 #3A2BC2

Accessibility & contrast

On white

15.93

#1C155E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1C155E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C155E

15.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C155E	#FFFFFF	#000000	##FFFFFF
##1C155E	1.00	15.93	1.32	15.93
#FFFFFF	15.93	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002560

Deuteranopia (green-blind)

#001F5D

Tritanopia (blue-blind)

#002938

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1c155e;
/* rgb */ color: rgb(28, 21, 94);
/* oklch */ color: oklch(26.4% 0.123 278.1);

Tailwind

colors: {
  custom: {
    50: '#63538c',
    500: '#1c155e',
    950: '#000000',
  },
}

SCSS

$custom: #1c155e;
$custom-light: #63538c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c155e",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 94
  },
  "hsl": {
    "h": 245.753,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.26362,
    "c": 0.12288,
    "h": 278.1
  },
  "luminance": 0.01591
}

Semantic roles & 50–950 ramp

primary

#1C155E

secondary

#8D9539

accent

#E741D7

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1C155E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →